B&C 18tbx100 T-tqwt

[bjorno]

...Can four of this cabinet hit 135db outdoor...

This will depend on the system space load :

b

[CRESCENDO]

In other words, not likely - unless there is a wall or a corner to put them in, outside

[soundhead]

Bjorno
What can be done to get 135db outdoor 2.0pi
Will a longer horn work

[CRESCENDO]

If you're open to a TH design and a little more work, this should achieve the output and extension you're after: 18TBX100 TH by epa

[bjorno]

..What can be done to get 135db outdoor 2.0pi..

Add some more speakers ...6 T-TQWT's(6 Ohm system impedance(5.33 Ohm)) in total 2S x 3P... + 2400W-amp or Eg=120 VRms.

..Will a longer horn work..

Not necessarily longer but larger, not if a T-TQWT is using only one driver/box.

b

[soundhead]

Originally Posted by CRESCENDO

If you're open to a TH design and a little more work, this should achieve the output and extension you're after: 18TBX100 TH by epa

Tapped horn was my first bet but too complex to build.

[soundhead]

Originally Posted by bjorno

Not necessarily longer but larger, not if a T-TQWT is using only one driver/box.

b

How much more larger the box will be.

[bjorno]

Originally Posted by soundhead

How much more larger the box will be.

As large as necessary without screwing up the passband FR or phase, of course.

At first hand:I never sub-optimize speakers by chasing SPL or Power,actually in my world all other parameters involved comes first as being more important.

SPL and Power is simple: Just add more speakers...

b

[soundhead]

Bjorno
Two driver per cabinet at 51" high is good enough for me.
Can you post on example of the cabinet size like you did in post#8.

Thanks

[soundhead]

Bjorno

Please let me know what you think and feel free to make any corrections

Thanks


t-tqwt.jpg